Accelerator without the limiter is enough. He would just need to stand there, while the zombies rush on him, only to be smashed to pieces by touching him. If i really need a full team i would prefer all the Level 5 from Academy City except 5th (she would be kinda useless), while i just stand in the background drinking tea or something.

Alucard from Hellsing, He's good with guns and he's boss.
Alphonse Elric from FMA, Its not like he's gunna be in danger since he's only a suit.
Itaru Hashida from Steins Gate, he's smart but mainly because I can run faster than him sooo...
Suou from darker than black, Its a sausage fest without a girl and she is good with guns.
Saeko from HighSchool of the Dead, she's got experience at killing zombies plus she's a girl.

Not really into the whole "BUILD YOUR ZOMBIE FIGHTING TEAM!!!" thing, but I can roll with this one.

For starters, I'd have Black Rock Shooter. Her skill with projectiles and swords has earned a spot on the team. Not only that, she has no powers herself, so there is no loss.
Second is Pikachu. Despite no longer being able to electricute zombies (in this scenario), Pikachu's small size and good senses make him a great scout.
My third member is Mahiru Inami. As long as the zombies are male, Inami will obliterate them.
My final teammate is L-Elf. Tactics and combat skill will achieve victory.

If powers WERE retained, my team would be this:

For starters, I'd have Black Rock Shooter. Her skill with projectiles and swords has earned a spot on the team.
Second is Kuroko Shirai. Her power can get herself and her teammates to a safe location, as well as put obstructions in the zombie's path.
Third is Pikachu. Not only does he make a great scout thanks to his size and senses, but his electric attacks can strike multiple targets at once.
Fourth is the most important: Toma Kamijyou. Since zombies are products of fiction, his Imagine Breaker will not only make him immune to the zombie virus, but his right hand will cure the zombie of being a zombie.

Accelerator without the limiter is enough. He would just need to stand there, while the zombies rush on him, only to be smashed to pieces by touching him. If i really need a full team i would prefer all the Level 5 from Academy City except 5th (she would be kinda useless), while i just stand in the background drinking tea or something.

Well, Misaki isn't entirely useless imo. Her Mental Out ability can be extended with a special device and if strong enough can turn tide in battles. In this case though (with the zombies) I think you might be right because according from what I've known, she can't control non-living creatures/objects.

My team:Roy Mustang (Fullmetal Alchemist) - one snap and the zombie path is will be clearedMikasa (Attack on Titan) - for close range zombie kills, plus her 3D maneuver gear will help. Vash the Stampede (Trigun) - the trump card, we can use his angel arm to destroy a whole infected city in one goStein (Soul Eater) - someone needs to find a cure! And he can fight if need be.

1) Yuki Nagato from TMOHS, for her brains. . . Her sexy, sexy brains.
2) Shana from Shakugan no Shana, 'cause she is a great sword fighter, and the strength would come in handy.
3) Henrietta from Gunslinger Girl, for her long range weapons expertise.
4) Rei Miyamoto from HSOTD, because experience is always needed.
5) Me, for. . . re-population purposes. >.>